Chaikasem, who turns 77 in August, has extensive government experience: a former attorney general, he served as Minister of Justice under former Prime Minister Yingluck Shinwatra—Thaksin’s sister and Paetongtarn’s aunt—until that government was overthrown in 2014.

Thailand’s new Cabinet members have taken their oaths of office, including the suspended prime minister who is under an ethics investigation.

Thailand’s embattled prime minister was suspended from duty Tuesday and could face dismissal pending an ethics probe over a leaked phone call she had with Cambodia’s powerful former leader.